HTTP Header reponses of genome.ucsc.edu is the information we get when HTTP request sent to a server from connecting clients(e.g. chrome, firefox). When you input an address into your browser it sends a request to the server hosting the domain and the server responds. HTTP Header information is not directly displayed by normal web browsers like chrome, firefox etc.
HTTP/1.1 200 OK Date: Fri, 07 Dec 2012 03:05:20 GMT Server: Apache/2.2.3 (CentOS) Accept-Ranges: bytes Connection: close Transfer-Encoding: chunked Content-Type: text/html; charset=ISO-8859-1
DNS Record Analysis
There are total 8 records in domain name system (DNS) of genome.ucsc.edu, which includes 7 Address(A) records and 1 Canonical Name(CNAME) record.
Host Name of the node to which this record pertains
Type Type of resource record in symbolic representation.
IP/Target
TTL Count of seconds that the resource record stays valid.
Extra Info Additional resource record-specific data
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.136
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.137
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.134
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.133
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.131
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.132
3600
genome.cse.ucsc.edu
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
128.114.119.138
3600
genome.ucsc.edu
CNAME Canonical Name Record: Alias of one name to another: the DNS lookup will continue by retrying the lookup with the new name.